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20 Mai 1869 Jahr - Dmitri Mendeleev

Beschreibung:

Arranged elements into 7 groups with similar properties. He discovered that the properties of elements "were periodic functions of the their atomic weights". This became known as the Periodic Law.

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scientific atom timeline

ByKyrell Brown
11 Dez 2018
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20 Mai 1869 Jahr
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~ 156 years ago
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